The WorkoutGen Team

Free app created by Jeremy Tellier, state-certified coach, and Jean-Baptiste Thery, expert developer. A French solution that makes professional coaching accessible through 350+ exclusive videos and structured training methods.

Jean-Baptiste Thery

Co-founder & Lead Developer

Full Stack JavaScript developer for 8 years. Has worked with major companies like Banque Accord, Decathlon and Suzuki, as well as numerous innovative startups. Technical expert in the web domain. Creator of the WorkoutGen engine that adapts Jeremy's programs to each unique profile.

Jeremy Tellier

Co-founder & Fitness Coach

Former military firefighter from Paris (BSPP - Paris Fire Brigade). State-certified BPJEPS coach, professional Hyrox athlete. 10 years of experience: military physical preparation and civilian coaching. Creator of 350+ videos and validator of WorkoutGen methods.

Our mission

Make gym training accessible to everyone. WorkoutGen is built on Jeremy Tellier's expertise as a state-certified coach: a proprietary coaching AI that structures your programs with periodization, progressive overload, and methodologies adapted to your level. It then learns from your feedback session after session, and from thousands of athletes, to refine your program in real time, like a coach by your side. Our goal: the most personalized training possible.

4 goals, over 350 HD videos filmed by our team, a full-screen vertical player with integrated set tracking, recent progress views, complete scheduling management, 9 languages, and 1-click installation. The app is free to use, and WorkoutGen Max adds AI Coach guidance, load suggestions and advanced analytics. Behind every program is the expertise of a real human coach. Designed and developed in France.